998995885 has 8 divisors (see below), whose sum is σ = 1213238880. Its totient is φ = 789567504.

The previous prime is 998995883. The next prime is 998995891. The reversal of 998995885 is 588599899.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 998995885 - 2¹ = 998995883 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (998995883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1203195 + ... + 1204024.

It is an arithmetic number, because the mean of its divisors is an integer number (151654860).

Almost surely, 2^998995885 is an apocalyptic number.

It is an amenable number.

998995885 is a deficient number, since it is larger than the sum of its proper divisors (214242995).

998995885 is a wasteful number, since it uses less digits than its factorization.

998995885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2407307.

The product of its digits is 83980800, while the sum is 70.

The square root of 998995885 is about 31606.8961620720. The cubic root of 998995885 is about 999.6651829100.

The spelling of 998995885 in words is "nine hundred ninety-eight million, nine hundred ninety-five thousand, eight hundred eighty-five".